From fe4e9078436246b1488b808c5d004d6812782e18 Mon Sep 17 00:00:00 2001
From: Adam Ruka <adamruka@amazon.com>
Date: Thu, 19 Nov 2020 13:31:49 -0800
Subject: [PATCH] fix(cfn-include): cfn-include fails in mono-CDK

The cloudformation-include module generates a big JSON
file at build time that contains the mapping from the CloudFormation resource type
to the fully-qualified class name of the corresponding L1
(something like "AWS::S3::Bucket": "@aws-cdk/aws-s3.CfnBucket").
The problem is that mono-CDK re-packages all of the per-service
modules into one big module,
and requiring the module from the mapping fails for it.

Solve the issue by adding an additional build step in mono-CDK that re-writes that file with the mapping values changed
(to something like "monocdk/aws-s3.CfnBucket").

Fixes #11342
---
 packages/monocdk/.gitignore                     |  1 +
 .../monocdk/cfn-include-rewrite-mappings.js     | 17 +++++++++++++++++
 packages/monocdk/package.json                   |  5 ++++-
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 packages/monocdk/cfn-include-rewrite-mappings.js

diff --git a/packages/monocdk/.gitignore b/packages/monocdk/.gitignore
index 155eb4afc38a9..b68c3fa1bfb96 100644
--- a/packages/monocdk/.gitignore
+++ b/packages/monocdk/.gitignore
@@ -1,4 +1,5 @@
 *.js
+!cfn-include-rewrite-mappings.js
 *.d.ts
 !deps.js
 !gen.js
diff --git a/packages/monocdk/cfn-include-rewrite-mappings.js b/packages/monocdk/cfn-include-rewrite-mappings.js
new file mode 100644
index 0000000000000..e3d9ad70f7b8a
--- /dev/null
+++ b/packages/monocdk/cfn-include-rewrite-mappings.js
@@ -0,0 +1,17 @@
+/*
+ * This script modifies the cfn-types-2-classes.json
+ * file that is generated by the build of the cloudformation-include package.
+ * It changes the values of the mappings to point to monocdk instead of the service-specific packages.
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+const mappingFilePath = path.resolve(path.join(__dirname, 'lib', 'cloudformation-include', 'cfn-types-2-classes.json'));
+const cfnTypes2Classes = require(mappingFilePath);
+for (const cfnType of Object.keys(cfnTypes2Classes)) {
+    const fqn = cfnTypes2Classes[cfnType];
+    // replace @aws-cdk/aws-<service> with monocdk/aws-<service>
+    cfnTypes2Classes[cfnType] = fqn.replace('@aws-cdk', 'monocdk')
+}
+fs.writeFileSync(mappingFilePath, JSON.stringify(cfnTypes2Classes, undefined, 2) + '\n');
diff --git a/packages/monocdk/package.json b/packages/monocdk/package.json
index 5ef18cf33c921..cd383303fa9c7 100644
--- a/packages/monocdk/package.json
+++ b/packages/monocdk/package.json
@@ -32,7 +32,10 @@
     "jest": true,
     "eslint": {
       "disable": true
-    }
+    },
+    "post": [
+      "node ./cfn-include-rewrite-mappings.js"
+    ]
   },
   "pkglint": {
     "exclude": [